(Optical Isolation optional through rear mounted transition board)


Product Description

The DIO 8005 is a 6U (double height) VME64x digital I/O board constructed to the VME64x standard. It provides 128 TTL digital I/O bits organised in four groups of 32 bits each with an input and an output strobe. Each group of 32 bits may be programmed to act as inputs or outputs.
When a group is in ‘input mode’, the module features change-of-state detection and contact de-bounce. A small FIFO memory, one for each input group, allows a historical record of the change-of-state input data to be stored; up to 64 samples. A further register associated with each input group controls which bits may generate an interrupt. This function has no effect when in output mode.
When a group is in ‘output mode’, outputs may be programmed as levels or pulses of programmed duration. A pulse parameter register determines the duration of pulsed outputs up to 100 seconds.
All the above registers occupy I/O space on the card in four groups, starting at offset zero+a (where a = 000hex, 100hex, 200hex or 300hex) as follows:
Offset Name Description
a+0 LKC Last Known Change/Data Register
a+4 CSR Control and Status Register
a+8 IMR Mask Register
a+C DBR De-bounce Register
a+10 PSR Pulse Select Register
a+14 PPR Pulse Parameter Register
a+18 FIFO_R FIFO Register
a+20 IRV Interrupt Request Vector

The module features hot-swap capability with auto power up and host interaction. An on-board FPGA allows full mapping of the IP board memory, I/O and ID spaces.
The VME interface supports short I/O access A16:D32:D16:D08 (EO), standard I/O access A24:D64.D32:D16:D08 (EO).
One of VME bus interrupt lines IRQ1 to IRQ7 can be selected and enabled by writing to an on-board register. The base address of extended memory can be set by register (offset addressing) or by geographical addressing lines.
Four front panel mounted LED’s light to visually indicate when a change and state has been detected on individual groups.
There is a TTL ‘Inhibit’ input on the front panel that allows the user to control when data is written to the FIFO memory.
All I/Os are sampled via the VME backplane P0 and P2 connectors as specified in the VME64 extensions specification. The I/O signals connect via rear mounted transition cards according to the VME64x Green-Spring pin-out for IP module carriers.
Newwood Solutions has available a range of rear-mounted transition cards with high-density 50-way [SCSI2] connectors, which can cater for all I/O signals and provide any necessary signal conditioning, including optical isolation.
One such board is the8308, a 4-Group Mixed Signal Transition Board, which accepts up to four 9307 or 9308 signal conditioning boards. The 9307 provides 32 opto-coupled inputs and the 9308 32 opto-coupled high current output MOSFET drivers.

Key Features

• VME64 extensions / Industry Pack CarrierBoard
• VME64x rear panel I/O
• Full EMC shielding and insertion/extraction handles
• Fully Hot-Swap capable with auto power-up and host interaction
• 6U (double height) VME base card
• User selectable VME interrupt level
• Geographical addressing
• Front panel TTL Inhibit signals allow control of timing synchronisation
• VME 64x Configuration ROM
• On-board 32MHz clock generation
• VME64x guide pin and slot keying
• 3.3V and 5V supply to P2 connector

Software Drivers are available including EPICS drivers .


User Manual This link is for the latest version of the DIO8005 Manual.